Dell OpenManage Software Version 9.1.2 Owner's manual

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Owner's manual

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Dell EMC OpenManage SNMP Reference Guide
Version 9.1.2
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks
may be trademarks of their respective owners.
2018 - 06
Rev. A00
Contents
1 Introduction....................................................................................................................................................7
What’s New in this release................................................................................................................................................ 7
Supported SNMP Versions............................................................................................................................................... 8
Managed Object Used in This Document....................................................................................................................... 8
Server Administrator Instrumentation MIB..................................................................................................................... 9
Server Administrator Baseboard Management Controller, ASF MIB......................................................................... 10
Server Administrator Storage Management MIB......................................................................................................... 10
Server Administrator Field Replaceable Unit MIB......................................................................................................... 11
Server Administrator Change Management MIB.......................................................................................................... 11
Basic Terminology..............................................................................................................................................................11
Frequently Used Terms in Variable Names.................................................................................................................... 12
Tables..................................................................................................................................................................................12
SNMP Tables...............................................................................................................................................................12
Section Organization........................................................................................................................................................ 14
Other Documents You May Need...................................................................................................................................14
Introduction to the Server Administrator SNMP Subagent........................................................................................ 14
Management Information Base Object Identiers..................................................................................................15
SNMP Security........................................................................................................................................................... 16
SNMP Traps................................................................................................................................................................ 16
2 Server Administrator Group..........................................................................................................................18
Instrumentation MIB Version Group...............................................................................................................................19
Management Information Base Major Version Number.........................................................................................19
Management Information Base Minor Version Number........................................................................................ 19
Management Information Base Maintenance Version Number............................................................................ 19
Systems Management Software Group........................................................................................................................20
Systems Management Software............................................................................................................................. 20
Systems Management Software Variable Values...................................................................................................23
System State Group........................................................................................................................................................ 24
System State Group Table........................................................................................................................................ 24
Chassis Information Group..............................................................................................................................................39
Chassis Information Group Tables............................................................................................................................39
Chassis Information Group Variable Values............................................................................................................ 68
Operating System Group.................................................................................................................................................77
Operating System Memory Table.............................................................................................................................77
System Resource Group................................................................................................................................................. 80
System Resource Group Tables............................................................................................................................... 80
System Resource Group Variable Values................................................................................................................ 93
Power Group.................................................................................................................................................................... 96
Power Group Tables...................................................................................................................................................96
Power Group Variable Values.................................................................................................................................. 122
Contents
3
Thermal Group................................................................................................................................................................ 129
Thermal Group Tables.............................................................................................................................................. 129
Thermal Group Variable Values............................................................................................................................... 139
Remote Flash BIOS Group............................................................................................................................................. 141
Remote Flash BIOS Group Table............................................................................................................................. 141
Remote Flash BIOS Variable Values....................................................................................................................... 143
Port Group.......................................................................................................................................................................144
Port Group Tables.....................................................................................................................................................144
Port Group Variable Values......................................................................................................................................167
Device Group...................................................................................................................................................................170
Device Tables.............................................................................................................................................................170
Device Group Variable Values..................................................................................................................................217
Slot Group.......................................................................................................................................................................238
System Slot Group Table.........................................................................................................................................238
System Slot Variable Values.................................................................................................................................... 241
Memory Group............................................................................................................................................................... 246
Physical Memory Tables..........................................................................................................................................246
Memory Group Variable Values...............................................................................................................................261
BIOS Setup Control Group........................................................................................................................................... 264
BIOS Setup Control Group Tables......................................................................................................................... 264
BIOS Group Variable Values....................................................................................................................................287
Local Response Agent Group.......................................................................................................................................294
LRA Group Tables.................................................................................................................................................... 294
Local Response Agent Variable Values..................................................................................................................298
Cost of Ownership Group.............................................................................................................................................299
Cost of Ownership Group Tables...........................................................................................................................299
Cost of Ownership Variable Values........................................................................................................................326
Cluster Group ................................................................................................................................................................ 327
Cluster Group........................................................................................................................................................... 327
Cluster Group Variable Values................................................................................................................................ 330
Baseboard Management Controller Group.................................................................................................................330
Baseboard Management Controller Group Tables...............................................................................................330
Baseboard Management Controller Group Variable Values................................................................................339
Field Replaceable Unit Group....................................................................................................................................... 342
Field Replaceable Unit Group Tables..................................................................................................................... 342
Field Replaceable Unit Group Variable Values...................................................................................................... 345
3 Storage Management Group......................................................................................................................346
Storage Management Group........................................................................................................................................346
Storage Management Information Group................................................................................................................... 347
Global Data Group..........................................................................................................................................................348
Physical Devices Group.................................................................................................................................................352
Controller Table........................................................................................................................................................ 353
Channel Table........................................................................................................................................................... 370
Enclosure Table.........................................................................................................................................................374
Array Disk Table........................................................................................................................................................382
4
Contents
Array Disk Enclosure Connection Table................................................................................................................. 397
Array Disk Channel Connection Table................................................................................................................... 399
Fan Table....................................................................................................................................................................401
Fan Connection Table..............................................................................................................................................405
Power Supply Table................................................................................................................................................. 407
Power Supply Connection Table.............................................................................................................................410
Temperature Probe Table.........................................................................................................................................412
Temperature Probe Connection Table....................................................................................................................416
Enclosure Management Module Table...................................................................................................................418
Enclosure Management Module Connection Table............................................................................................. 422
Battery Table............................................................................................................................................................ 423
Battery Connection Table....................................................................................................................................... 428
Tape Drive Table.......................................................................................................................................................430
NVME adapter table................................................................................................................................................432
Logical Devices Group...................................................................................................................................................439
Virtual Disk Table......................................................................................................................................................439
Virtual Disk Partition................................................................................................................................................ 447
Array Disk Logical Connection Table......................................................................................................................448
Storage Management Event Group............................................................................................................................ 450
4 Change Management Group...................................................................................................................... 454
Inventory Group............................................................................................................................................................. 454
Device Group..................................................................................................................................................................455
Device Group Table................................................................................................................................................. 455
Application Group...........................................................................................................................................................457
Application Group Table...........................................................................................................................................457
Operating System Group.............................................................................................................................................. 458
Inventory Collector Product Information.................................................................................................................... 458
5 SNMP Traps.............................................................................................................................................. 459
Trap Variables................................................................................................................................................................. 459
Understanding The Trap Description........................................................................................................................... 461
Understanding Trap Severity........................................................................................................................................464
BMC Traps......................................................................................................................................................................464
6 Storage Management Alert Reference....................................................................................................... 467
Alert Monitoring and Logging....................................................................................................................................... 467
Viewing Alerts.................................................................................................................................................................467
Alert Severity Levels......................................................................................................................................................467
SNMP Support for Storage Management Alerts...................................................................................................... 468
SNMP Trap Forwarding.......................................................................................................................................... 468
SNMP Trap Denitions............................................................................................................................................468
Trap Variables........................................................................................................................................................... 469
Viewing SNMP Traps..................................................................................................................................................... 471
Alert Descriptions and Corrective Actions...................................................................................................................471
Contents
5
7 Standard Data Type Denitions.................................................................................................................. 472
Common Data Types..................................................................................................................................................... 472
Variables with Data Types of State Capabilities and State Capabilities Unique..................................................... 472
Dell Status Data Types...................................................................................................................................................473
Dell Date.......................................................................................................................................................................... 474
Full Dates.................................................................................................................................................................. 475
8 SNMP Sample Output............................................................................................................................... 476
6 Contents
Introduction
This reference guide provides information about the Simple Network Management Protocol (SNMP) Management Information Base (MIB)
which is applicable for Dell EMC OpenManage.
NOTE: This guide contains information that may also be applicable to earlier OpenManage supported platforms.
This introduction is divided into two sections. The rst section, Introduction to SNMP Reference Guide, explains the SNMP Reference
Guide design. All essential Simple Network Management Protocol (SNMP) terms are dened in this section. Some of the vocabulary may
seem complex and unfamiliar to system administrators who are using SNMP for the rst time. SNMP experts can skim this section, and
beginners can read the section more carefully.
The second section, Introduction to the Server Administrator SNMP Subagent, is a more technical introduction to the management
information base (MIB) that underlies Server Administrator services.
Topics:
What’s New in this release
Supported SNMP Versions
Managed Object Used in This Document
Server Administrator Instrumentation MIB
Server Administrator Baseboard Management Controller, ASF MIB
Server Administrator Storage Management MIB
Server Administrator Field Replaceable Unit MIB
Server Administrator Change Management MIB
Basic Terminology
Frequently Used Terms in Variable Names
Tables
Section Organization
Other Documents You May Need
Introduction to the Server Administrator SNMP Subagent
Whats New in this release
This release of Dell OpenManage SNMP introduces the following new variables:
NOTE
: For more information on SNMP traps with Out-of-Band using iDRAC and Chassis Management Controller, see
Dell
OpenManage SNMP Reference guide for iDRAC and CMC
Added new variables for Dell OpenManage Server Administrator Group
New variables added:
Slot Group :
System Slot Variable Values : System Slot Type: DellSystemSlotType
1
Introduction 7
Supported SNMP Versions
Table 1. Supported SNMP Versions
Operating System Supported OMSA SNMP version
Windows SNMP v1
Linux SNMP v1
Managed Object Used in This Document
The MIB is divided into several major groups. The following table provides information about the MIB names, name of the agent that uses
each MIB and the purpose:
Table 2. Managed Object Used in This Document
MIB Name Agent / Hardware Supported Purpose of the MIB
10892.mib Server Administrator Provides the information about the systems monitored by
Server Administrator instrumentation software. This is the
primary MIB for PowerEdge systems.
dcs3fru.mib Server Administrator Provides the information about the system Field
Replaceable Unit (FRU) to SNMP management
applications.
dcstorag.mib Server Administrator Storage Management Provides the information about the storage hardware
components and RAID congurations monitored by Server
Administrator.
iDRAC-SMIv1.mib iDRAC7 and iDRAC 8 Provides information about the SNMP data and traps
supported by iDRAC7 and iDRAC8. This is the SMIv1
version of the iDRAC MIB.
iDRAC-SMIv2.mib iDRAC7 and iDRAC 8 Provides information about the SNMP data and traps
supported by iDRAC7 and iDRAC8. This is the SMIv2
version of the iDRAC MIB.
dcs3rmt.mib Dell Remote Access controller 5 (DRAC 5) Provides information about remote access components
monitored by the Server Administrator Remote Access
Service.
rac_host.mib Remote access out-of-band agent Provides information about the components monitored by
the remote access out-of-band software agent.
DELL-RAC-MIB.txt Chassis Management Controller (CMC) Provides information about components monitored by the
Chassis Management Controller for modular chassis. This
MIB is the legacy iDRAC MIB. Changes made in this MIB
are not for iDRAC. iDRAC does not support all the objects
and traps dened in this MIB. The new and more extensive
iDRAC MIB is available for iDRAC7 and later versions.
DcAsfSrv.mib Baseboard Management Controller (BMC) Provides information about server Platform Event Traps
generated by the Baseboard Management Controller.
For further details see Release Notes for Management Information Base readme_mibs.txt.
8
Introduction
Server Administrator Instrumentation MIB
The Server Administrator Instrumentation MIB ( lename 10892.mib ) provides instrumentation data that allows you to monitor the health
of a system with SNMP management applications. It provides:
Information about the status of temperatures, power supplies, voltages, currents, fans, and memory at key points in the system
Rapid access to detailed fault and performance information gathered by industry standard systems management agents
Version information for Basic Input/Output System (BIOS), rmware, and operating system
A detailed account of every cost of ownership (COO) detail about your system
In addition, traps are sent to report a change in status of the health of critical components.
The Server Administrator Instrumentation MIB structures its MIB objects into groups of scalar objects or MIB tables that provide related
information. The below table describes each Server Administrator Instrumentation MIB group and lists the MIB group number assigned to
the MIB group. The Server Administrator Instrumentation MIB groups are identied by the SNMP OID 1.3.6.1.4.1.674.10892.1.<MIB group
number>, where <MIB group number> is the MIB group number assigned to the MIB group. See the relevant section for more information
about the MIB objects dened in a MIB group.
Table 3. Server Administrator Instrumentation MIB Sections in This Guide
Section Topics MIB Group Numbers
2 Instrumentation MIB Version Group — denes version numbers of the
Instrumentation MIB
1
3 Systems Management Software Group — denes information about the
systems management software and the supported systems management
standards
100
4 System State Group — denes status, state, and redundancy for a system
and its components
200
5 Chassis Information Group — denes chassis types, events, and indicators 300
6 Operating System Group — denes variables for name, version, service pack,
and other information about a systems operating system
400
7 System Resource Group — denes variables for input/output ports, memory,
interrupts, and direct memory access
500
8 Power Group — denes variables for power units, power supplies, and their
current and voltage probes
600
9 Thermal Group — denes variables for temperature probes and cooling
devices
700
10 User Security Group — denes variables for creating and modifying user
accounts
800
11 Remote Flash BIOS Group — denes variables for updating the system’s
BIOS remotely
900
12 Port Group — denes variables for major port types such as keyboard,
monitor, small computer system interface (SCSI), Universal Serial Bus (USB),
and parallel and serial ports
1000
13 Device Group — denes variables for pointing, keyboard, processor, cache,
memory, and personal computer interface devices
1100
14 Slot Group — denes variables for the system’s slots 1200
15 Memory Group — denes variables for the system’s physical memory 1300
Introduction 9
Section Topics MIB Group Numbers
16 BIOS Setup Control Group — denes variables for BIOS functions such as
boot sequence, speakers, Wake on the local area network (LAN), diskettes,
ports, and network interface controllers (NIC)
1400
17 Local Response Agent Group — denes variables for global settings and
actions. These variables allow users to predetermine how the system
responds to a particular type of event
1500
18 Cost of Ownership Group — denes variables for tracking data on the
system’s service contract, lease, repair records, trouble tickets, and so on
1600
20 Cluster Group — denes variables for systems that operate as a cluster 1800
21 Baseboard Management Controller Group — provides information about the
Baseboard Management Controller (BMC) that may be present in your
system. In addition to providing general information about the BMC, this
group provides information about the serial and local area network (LAN)
interfaces of the BMC
1900
26 Traps — denes the types of alerts that can be sent to report the status of
critical components
5000
Server Administrator Baseboard Management
Controller, ASF MIB
The Server Administrator BMC MIB (lename DcAsfSrv.mib) provides information about the traps sent by BMC. The Server Administrator
BMC MIB structures its MIB objects that provide related information. The BMC MIB groups are identied by the SNMP OID
1.3.6.1.4.1.3183.1.1.<MIB group number>. The BMC MIB adheres to ASF 2.0 standard and hence the enterprise ID is wired for management
(3183).
Server Administrator Storage Management MIB
The Server Administrator Storage Management MIB (lename dcstorag.mib) provides storage management data that allows you to monitor
the health of storage resources with SNMP management applications.
The following table describes each Server Administrator Storage Management MIB group and lists the MIB group number assigned to the
MIB group. The Server Administrator Storage Management MIB groups are identied by the SNMP OID 1.3.6.1.4.1.674.<MIB group number>
where <MIB group number> is the MIB group number assigned to the MIB group. See the relevant section for more information about the
MIB objects dened in a MIB group.
Table 4. Server Administrator Storage Management MIB Sections in This Guide
Section Topics MIB Group Numbers
23 Storage Management Group — consists of denitions for the following MIB
groups:
Storage Management Group
Storage Management Information Group
Global Data Group
Physical Devices Group
Logical Devices Group
Storage Management Event Group
Software Group
10893
NA
20
NA
NA
130
140
10 Introduction
Section Topics MIB Group Numbers
NA
1
27 Storage Management Alert Reference — lets you monitor the health of
storage resources such as controllers, connectors, array disks, and virtual
disks
NA
Server Administrator Field Replaceable Unit MIB
The Server Administrator Field Replaceable Unit MIB (lename dcs3fru.mib) provides information about eld replaceable unit (FRU)
hardware that may be present in your system.
The Server Administrator Field Replaceable Unit MIB structures its MIB objects into groups of scalar objects or MIB tables that provide
related information. The following table describes each Server Administrator Field Replaceable Unit MIB group and lists the MIB group
number assigned to the MIB group. The Server Administrator Field Replaceable Unit MIB groups are identied by the SNMP OID
1.3.6.1.4.1.674.10892.1.<MIB group number> where <MIB group number> is the MIB group number assigned to the MIB group. See the
relevant section for more information about the MIB objects dened in a MIB group.
Table 5. Server Administrator Field Replaceable Unit MIB Sections in This Guide
Section Topic MIB Group Numbers
22 Field Replaceable Unit Group — provides information about eld replaceable
units that may be present in your system
2000
Server Administrator Change Management MIB
The Server Administrator Change Management MIB (lename dellcm.mib) provides management data that allows you to monitor the
inventory of devices and applications with SNMP management applications.
The following table describes each Server Administrator Change Management MIB group and lists the MIB group number assigned to the
MIB group. The Server Administrator Change Management MIB groups are identied by the SNMP OID 1.3.6.1.4.1.674.<MIB group number>
where <MIB group number> is the MIB group number assigned to the MIB group. See the relevant section for more information about the
MIB objects dened in a MIB group.
Table 6. Server Administrator Change Management MIB Sections in This Guide
Section Topics MIB Group Number
24 Change Management Group - describes the
inventory data provided by the Change
Management MIB that allows users to monitor
devices and software present on a particular
managed computer chassis
10899
Basic Terminology
It is important to have a good understanding of the key technical terms used in this guide. This guide provides denitions for all essential
terms used in describing the Server Administrator MIBs. For denitions on all essential terms and acronyms, see the Glossary available on
the Dell Support website at dell.com/support/manuals.
Introduction
11
Frequently Used Terms in Variable Names
The following terms are frequently used in the name of a MIB variable:
Capability refers to the actions an object can perform, or to actions that can be taken by the object. Hot-pluggable is an example of a
capability. If a card is hot-pluggable, it can be replaced while a system is running. Capability settings refer to the capabilities of the object
that the user can select from and activate if desired. Capability settings allow users of the server administrator to predetermine how an
object behaves under specic conditions.
Settings are the conditions of a manageable object that determine what happens when a certain value is detected in a component. For
example, a user can set the upper critical threshold of a temperature probe to 75 degrees Celsius. If the probe reaches that temperature,
the setting causes an alert to be sent to the management console. Some settings, when reached, can trigger a system shutdown or other
response to prevent damage to the system.
State refers to the condition of an object that has more than one condition. For example, an object may be in a not ready or in an enabled
state.
Status refers to the health of an object or how the object is functioning. For example, the status of a temperature probe that is measuring
acceptable temperatures would be reported as normal. When the probe begins reading temperatures that exceed limits set by the user, it
reports a critical status.
Tables
This reference guide contains two types of tables: tables that are used to organize and dene variable values and tables that dene MIB
objects. Readers must understand the dierence between these two types of tables.
SNMP Tables
Most of the MIB objects dened in this reference guide are organized into SNMP tables. SNMP tables organize data into two-dimensional
structural arrays. In SNMP, objects that have a relationship to other objects are called columnar objects. Columnar objects are objects used
to form lists and tables. When a MIB group is divided into one or more discrete tables, the word table has a technical meaning. An example
is the section of this reference guide entitled Universal Unique Identier (UUID). The UUID object has a type and a value that uniquely
identies an object such as a chassis. The table denes all of the variables that comprise the managed object UUID.
The following table is an example of an SNMP table. The table contains variables that must occur in a denite sequence. In the example
table the dened variables are UUID Chassis Index, UUID Index, UUID Type, and UUID Value.
These objects comprise the Server Administrator denitions for the UUID.
Table 7. UUID Table
Name
uUIDTable
Object ID 1.3.6.1.4.1.674.10892.1.300.20
Description Denes the UUID table.
Syntax SEQUENCE OF UUIDTableEntry
Access Not accessible
12 Introduction
Table 8. UUID Table Entry
Name
uUIDTableEntry
Object ID 1.3.6.1.4.1.674.10892.1.300.20.1
Description Denes the UUID table entry.
Syntax UUIDTableEntry
Access Not accessible
Index
uUIDIndex
,
uUIDchassisIndex
Table 9. UUID Chassis Index
Name
uUIDchassisIndex
Object ID 1.3.6.1.4.1.674.10892.1.300.20.1.1
Description Denes the index (one-based) of this chassis.
Syntax DellObjectRange
Access Read-only
Table 10. UUID Index
Name
uUIDIndex
Object ID 1.3.6.1.4.1.674.10892.1.300.20.1.2
Description Denes the index of the UUID in a specied chassis.
Syntax DellObjectRange
Access Read-only
Table 11. UUID Type
Name
uUIDType
Object ID 1.3.6.1.4.1.674.10892.1.300.20.1.3
Description Denes the type of the UUID for this chassis.
Syntax DellUUIDType
Access Read-only
Table 12. UUID Value
Name
uUIDValue
Object ID 1.3.6.1.4.1.674.10892.1.300.20.1.4
Description Denes the value of the UUID for this chassis.
Syntax Octet String (SIZE[16])
Introduction 13
Access Read-only Read-only
Section Organization
Sections in this reference guide are based on the Server Administrator MIBs, so the complexity of each section depends on the complexity
of each MIB group. The rst section provides a high-level introduction to the MIB group. If the group is dened by one or more tables, the
second section lists these tables. The third section documents the variables that comprise the group, and if applicable, the variables that
comprise the tables. The fourth section contains denitions for any Server Administrator-specic variables that are used in the section. The
following example shows the typical content of these four sections:
1 BIOS Setup Control Group — This section explains the purpose of the MIB group and summarizes the major features of the
component groups.
2 BIOS Group Tables — If there is more than one SNMP table for a group, this section lists all of the tables. For this BIOS group
example, there are eight tables listed. In each section, double-clicking any table on the list takes you to that table.
BIOS Setup Control Table
SCSI Control Table
Parallel Port Control Table
Serial Port Control Table
USB Control Table
IDE Control Table
Diskette Control Table
Network Interface Control Table
3 Variables that make up each table in the group — This section documents the variables for the eight tables that comprise the BIOS
group.
4 BIOS Variable Values — This section explains any Server Administrator-specic variables and data types that are used in this section.
In the BIOS group example, there are 17 unique, Server Administrator-specic variable meanings. Information on each Server
Administrator-specic variable is presented in a formatted table.
Other Documents You May Need
In addition to this guide, you can access the following guides available on the Dell Support website at dell.com/support/manuals. On the
Manuals page, click Software Systems Management. Click the appropriate product link on the right-side to access the documents.
The Server Administrator Messages Reference Guide lists the messages that you can receive on your systems management console or
on your operating system’s event viewer. This guide explains the text, severity, and cause of each message that the server
administrator issues.
The Server Administrator CIM Reference Guide documents the Common Information Model (CIM) provider, an extension of the
standard management object format (MOF) le. The Server-Administrator CIM provider documents supported classes of management
objects.
The Glossary provides information on the terms used in this document.
Introduction to the Server Administrator SNMP
Subagent
This guide provides formatted information drawn primarily from the MIB les written for the Server Administrator services that support the
SNMP protocol.
For each of the variables dened in the MIBs, the following elds are specied:
Variable name
OID or unique identifying number
Description
14
Introduction
Data type of the variable (for example: integer, string, octet string)
Whether the variable is accessible, not accessible, or read-only
Index or indexes, if applicable
For each MIB group that has unique variable denitions, tables are included in the last section of the section to explain the meaning of the
terms.
Standards for writing MIBs are dened by the Internet Engineering Task Force (IETF). Structure of Management Information (SMI) is a
standard that species the rules for dening the structure and type of managed objects and events in a MIB. SMIv1 is specied in Request
For Comments (RFC) 1155. The Server Administrator MIB conforms to the SMIv1 standard.
SNMP is a systems management standard originally designed for network management. SNMP manages much more than networks.
Information Technology (IT) professionals use SNMP for monitoring and managing computer systems and the various components and
peripherals supported by their systems.
SNMP standards are dened by the Internet Engineering Task Force (IETF). SNMP version 1 was published in August 1988 and is the most
commonly supported version of SNMP. SNMP version 2 was rst published in May 1993, but has not gained widespread market
acceptance. SNMP version 3 was recently completed and has addressed security issues that exist in version 1.
All SNMP systems consist of one or more managed systems that provide data through an SNMP agent to a management system. The
management system provides a user interface to view data from the managed systems. The management system and managed systems
communicate over a network (typically through User Datagram Protocol/Internet Protocol [UDP/IP]).
The management system and a managed system communicate by means of a common data schema. SNMP MIB les dene the structure,
type, and values of the SNMP data. While MIBs can be standardized or enterprise specic, most operating systems supply SNMP agents
for the standard MIB-I and MIB-II schemas. MIB-I denes a base set of standard management information for systems implementing the
Internet Protocol (IP) suite. MIB-II denes characteristics of the system, characteristics of network interfaces, and characteristics of
components of the IP on the system. In addition to the standard MIBs, many hardware vendors have dened MIBs that provide
management data specic to their systems and peripheral devices.
Monitored data can be retrieved through SNMP using the Get command. Typically, this command requires the host name or IP address of
the target machine as well as the OID of the data to retrieve. Exact details are dependent on the operating system and the development
tools being used to create the management application. The Get command has a variant known as GetNext.
Management Information Base Object Identiers
Each data class within a Management Information Base (MIB) is dened by an Object Identier (OID). OIDs are unique across all MIBs. An
OID consists of a series of digits separated by periods. The OID functions in a similar fashion to a phone number. The phone number
011-512-471-0000 uniquely identies a single phone. The phone number can be broken down into a number of components to uniquely
identify a phone. The rst component, 011, is the country code for the United States. The second component, 512, identies the area code
for central Texas. The third component, 471, is the phone exchange for a large state university in the city of Austin. The nal component,
0000, is the main switchboard.
There are two main dierences between the phone number example and an actual OID. The rst dierence is that there are many more
components in an OID, up to 128. The combination of these components is called an OID prex. The second dierence is that OIDs support
the concept of indexes or keys. The OID prex species the data class but does not specify an instance of the data within the class.
Indexes can be used to identify the instances of a data class. These indexes are referred to as the OID sux.
The assignment of values for each OID prex component can be illustrated by using a tree structure. The following is an example of an OID
assignment:
Introduction
15
Table 13. ROOT
CCITT(0)
ISO(1)
ORG(3)
DOD(6)
INTERNET(1)
MGMT(2)
MIB(1)
EXPERIMENTAL(
3)
PRIVATE(4)
ENTERPRISES(1)
DELL (674)
SNMPv2(6)
In the preceding example, the OID prex for the Dell enterprise would be 1.3.6.1.4.1.674.
The numbers in boldface type show the categories and numbers that apply to Server Administrator. All Server Administrator-dened OIDs
consist of 1.3.6.1.4.1.674 followed by additional component values.
SNMP Security
SNMP version 1 has a very limited security mechanism. SNMP agents support the use of a community string, which is congured at each
SNMP agent and is passed as a part of all SNMP request messages. There is no verication that the requester is actually a member of the
specied community. As most system and network management data is not condential, this limited security is acceptable for Get types of
requests. On the other hand, this security is not acceptable for Set types of operations where an SNMP request could power o a system,
recongure a redundant array of independent disks (RAID) card, and so on. Dell has chosen not to support SNMP Set operations for this
reason.
NOTE
: The default SNMP agent conguration usually includes a SNMP community name such as public. For security reasons,
change the SNMP community names from their default values. For information about changing SNMP community names, see
the
Dell OpenManage Server Administrator User’s Guide
available on the Dell Support website at dell.com/openmanagemanuals.
NOTE: As of iDRAC7 rmware release r1.30.30, iDRAC7 supports SNMP query operations (GET, GETNEXT, GETBULK) via the
SNMPv3 protocol, in addition to supporting query operations via the SNMP v1 and SNMP v2c protocols. More specically,
iDRAC7 now supports the SNMP User Security Model (USM).
SNMP Traps
SNMP is frequently used to monitor systems for fault conditions such as temperature violations, hard drive failures. Management
applications can monitor for these conditions by polling the appropriate OIDs with the Get command and analyzing the returned data. This
method has its drawbacks. If it is done frequently, signicant amounts of network bandwidth can be consumed. If it is done infrequently,
the response to the fault condition may not occur in a timely fashion. SNMP traps avoid these limitations of the polling method.
An SNMP trap is an asynchronous event indicating that something signicant has occurred. This is analogous to a pager receiving an
important message, except that the SNMP trap frequently contains all the information needed to diagnose a fault.
16
Introduction
Two drawbacks to SNMP traps are that they are sent using UDP, which is not a guaranteed delivery mechanism, and that they are not
acknowledged by the receiver.
An SNMP trap message contains the trap’s enterprise OID, the agent IP address, a generic trap ID, the specic trap ID, a time stamp, and
zero or more variable bindings (varbinds). The combination of an enterprise OID and a specic trap ID uniquely identies each Server
Administrator-dened trap. A varbind consists of an OID and its value and provides additional information about the trap.
In order for a management system to receive SNMP traps from a managed system, the node must be congured to send traps to the
management system. Trap destination conguration depends on the operating system. When this conguration is done, a management
application on the management system can wait for traps and act on them when received.
NOTE: For information on Server Administrator Storage Management traps, see in Storage Management Alert Reference, the
Alert Descriptions and Corrective Actions.
NOTE: For the list of storage management alerts and storage management messages, see the
Dell OpenManage Server
Administrator Messages Reference Guide
available on the Dell Support site at dell.com/openmanagemanuals navigate to
OpenManage Software and select the version required.
Introduction 17
Server Administrator Group
The Server Administrator group comprises of the following sections:
Instrumentation MIB Version Group
Systems Management Software Group
System State Group
Chassis Information Group
Operating System Group
System Resource Group
Power Group
Thermal Group
Remote Flash BIOS Group
Port Group
Device Group
Slot Group
Memory Group
BIOS Setup Control Group
Local Response Agent Group
Cost of Ownership Group
Cluster Group
Baseboard Management Controller Group
Field Replaceable Unit Group
Topics:
Instrumentation MIB Version Group
Systems Management Software Group
System State Group
Chassis Information Group
Operating System Group
System Resource Group
Power Group
Thermal Group
Remote Flash BIOS Group
Port Group
Device Group
Slot Group
Memory Group
BIOS Setup Control Group
Local Response Agent Group
Cost of Ownership Group
Cluster Group
Baseboard Management Controller Group
2
18 Server Administrator Group
Field Replaceable Unit Group
Instrumentation MIB Version Group
The Instrumentation Management Information Base (MIB) Version Group denes the attributes that identify the version of the
Instrumentation MIB supported by the systems management software.
The mIBMajorVersionNumber, mIBMinorVersionNumber, and mIBMaintenanceVersionNumber attributes are scalar objects, meaning that
they are not related to other MIB objects and are thus not placed in a table.
Management Information Base Major Version Number
Table 14. Management Information Base Major Version Number
Name
mIBMajorVersionNumber
Object ID 1.3.6.1.4.1.674.10892.1.1.1.0
Description Denes the major version number of the version of this MIB supported by the systems
management software. For example, if the MIB version is 1.2.3, the major version number is 1.
A major version number change indicates a major change in object functionality.
Syntax DellUnsigned8BitRange
Access Read-only
Management Information Base Minor Version Number
Table 15. Management Information Base Minor Version Number
Name
mIBMinorVersionNumber
Object ID 1.3.6.1.4.1.674.10892.1.1.2.0
Description Denes the minor version number of the version of this MIB supported by the systems
management software. For example, if the MIB version is 1.2.3, the minor version number is 2.
A minor revision provides additional support for new objects as well as problem xes.
Syntax DellUnsigned8BitRange
Access Read-only
Management Information Base Maintenance Version Number
Table 16. Management Information Base Maintenance Version Number
Name
mIBMaintenanceVersionNumber
Object ID 1.3.6.1.4.1.674.10892.1.1.3.0
Server Administrator Group 19
Description Denes the maintenance version number for the version of this MIB supported by the systems
management software. For example, if the MIB version is 1.2.3, the maintenance version
number is 3.
Syntax DellUnsigned8BitRange
Access Read-only
Systems Management Software Group
The Systems Management Software Group allows users to see information about the standards and software that are supported by the
agent of a particular managed computer chassis. The Systems Management Software Group classies each computer chassis according to
the systems management standard that the agent supports.
Additional objects dene the universal resource locator (URL) of the systems management software and the language in which systems
management information displays. Dening these objects enables users to manage a system using an internet browser. You can access
Server Administrator using the secure hypertext transfer protocol (https) and a pre-assigned port number of 1311, or you can specify a port
number of your own choosing.
NOTE: Using the Software > Server Preferences menu of Server Administrator, you can bind to either one IP address or to all IP
addresses.
To manage a system locally using Server Administrator, type the following in the address eld of your browser: https://localhost:<1311 or
user-specied port number>
To manage a system remotely using Server Administrator, type one of the following in the address eld of your browser:
https://<systemname>:<1311 or user specied port number> or https://<IP address>:<1311 or user specied port number>
Systems Management Software
The following objects describe the elds for server administrator systems management information. The systems management software
variables are scalar objects, meaning that they are not related to other management information base (MIB) objects and are thus not
placed in a table.
Table 17. Systems Management Software Name
Name
systemManagementSoftwareName
Object ID 1.3.6.1.4.1.674.10892.1.100.1
Description Denes the systems management software product name.
Syntax DellString
Access Read-only
Table 18. Systems Management Software Version Number Name
Name
systemManagementSoftwareVersionNumberName
Object ID 1.3.6.1.4.1.674.10892.1.100.2
Description Denes the version number of the systems management software.
Syntax DellString
Access Read-only
20 Server Administrator Group
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Dell OpenManage Software Version 9.1.2 Owner's manual

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